about summary refs log tree commit diff stats
path: root/html/080display.cc.html
diff options
context:
space:
mode:
Diffstat (limited to 'html/080display.cc.html')
-rw-r--r--html/080display.cc.html158
1 files changed, 81 insertions, 77 deletions
diff --git a/html/080display.cc.html b/html/080display.cc.html
index ef5cf2f3..389f8327 100644
--- a/html/080display.cc.html
+++ b/html/080display.cc.html
@@ -11,18 +11,21 @@
 <style type="text/css">
 <!--
 pre { white-space: pre-wrap; font-family: monospace; color: #aaaaaa; background-color: #080808; }
-body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; }
-a { color:#eeeeee; text-decoration: none; }
-a:hover { text-decoration: underline; }
-* { font-size: 12pt; font-size: 1em; }
+body { font-size:12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; }
+.subxS2Comment a { color:inherit; }
+.subxS1Comment a { color:inherit; }
+.subxComment a { color:inherit; }
+.subxH2Comment a { color:inherit; }
+.subxH1Comment a { color:inherit; }
+* { font-size:12pt; font-size: 1em; }
 .cSpecial { color: #008000; }
-.LineNr { color: #444444; }
-.Constant { color: #00a0a0; }
-.Delimiter { color: #800080; }
-.Identifier { color: #c0a020; }
+.LineNr { color:#444444; }
+.Constant { color:#00a0a0; }
+.Delimiter { color:#800080; }
+.Special { color:#c00000; }
+.Identifier { color:#c0a020; }
 .Normal { color: #aaaaaa; background-color: #080808; padding-bottom: 1px; }
-.Comment { color: #9090ff; }
-.Comment a { color:#0000ee; text-decoration:underline; }
+.Comment { color: #8080ff; }
 .SalientComment { color: #00ffff; }
 -->
 </style>
@@ -57,6 +60,7 @@ if ('onhashchange' in window) {
 </script>
 </head>
 <body onload='JumpToLine();'>
+<a href='https://github.com/akkartik/mu/blob/master/080display.cc'>https://github.com/akkartik/mu/blob/master/080display.cc</a>
 <pre id='vimCodeElement'>
 <span id="L1" class="LineNr">  1 </span><span class="Comment">//: Take raw control of the text-mode display and console, putting it in</span>
 <span id="L2" class="LineNr">  2 </span><span class="Comment">//: 'console' mode rather than the usual automatically-scrolling 'typewriter'</span>
@@ -65,31 +69,31 @@ if ('onhashchange' in window) {
 <span id="L5" class="LineNr">  5 </span><span class="SalientComment">//:: Display management</span>
 <span id="L6" class="LineNr">  6 </span>
 <span id="L7" class="LineNr">  7 </span><span class="Delimiter">:(before &quot;End Globals&quot;)</span>
-<span id="L8" class="LineNr">  8 </span><span class="Normal">int</span> Display_row = <span class="Constant">0</span><span class="Delimiter">;</span>
-<span id="L9" class="LineNr">  9 </span><span class="Normal">int</span> Display_column = <span class="Constant">0</span><span class="Delimiter">;</span>
+<span id="L8" class="LineNr">  8 </span><span class="Normal">int</span> <span class="Special">Display_row</span> = <span class="Constant">0</span><span class="Delimiter">;</span>
+<span id="L9" class="LineNr">  9 </span><span class="Normal">int</span> <span class="Special">Display_column</span> = <span class="Constant">0</span><span class="Delimiter">;</span>
 <span id="L10" class="LineNr"> 10 </span>
 <span id="L11" class="LineNr"> 11 </span><span class="Delimiter">:(before &quot;End Includes&quot;)</span>
 <span id="L12" class="LineNr"> 12 </span><span class="Comment">#define CHECK_SCREEN \</span>
 <span id="L13" class="LineNr"> 13 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span>!tb_is_active<span class="Delimiter">())</span> <span class="Delimiter">{</span> \
-<span id="L14" class="LineNr"> 14 </span>      <span class="Normal">if</span> <span class="Delimiter">(</span>Run_tests<span class="Delimiter">)</span> \
-<span id="L15" class="LineNr"> 15 </span>        <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;tried to print to real screen in a test!</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span> \
+<span id="L14" class="LineNr"> 14 </span>      <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Run_tests</span><span class="Delimiter">)</span> \
+<span id="L15" class="LineNr"> 15 </span>        <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;tried to print to real screen in a test!\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span> \
 <span id="L16" class="LineNr"> 16 </span>      <span class="Normal">else</span> \
-<span id="L17" class="LineNr"> 17 </span>        <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;tried to print to real screen before 'open-console' or after 'close-console'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span> \
+<span id="L17" class="LineNr"> 17 </span>        <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;tried to print to real screen before 'open-console' or after 'close-console'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span> \
 <span id="L18" class="LineNr"> 18 </span>      <span class="Identifier">break</span><span class="Delimiter">;</span> \
 <span id="L19" class="LineNr"> 19 </span>    <span class="Delimiter">}</span>
 <span id="L20" class="LineNr"> 20 </span><span class="Comment">#define CHECK_CONSOLE \</span>
 <span id="L21" class="LineNr"> 21 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span>!tb_is_active<span class="Delimiter">())</span> <span class="Delimiter">{</span> \
-<span id="L22" class="LineNr"> 22 </span>      <span class="Normal">if</span> <span class="Delimiter">(</span>Run_tests<span class="Delimiter">)</span> \
-<span id="L23" class="LineNr"> 23 </span>        <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;tried to read event from real keyboard/mouse in a test!</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span> \
+<span id="L22" class="LineNr"> 22 </span>      <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Run_tests</span><span class="Delimiter">)</span> \
+<span id="L23" class="LineNr"> 23 </span>        <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;tried to read event from real keyboard/mouse in a test!\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span> \
 <span id="L24" class="LineNr"> 24 </span>      <span class="Normal">else</span> \
-<span id="L25" class="LineNr"> 25 </span>        <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;tried to read event from real keyboard/mouse before 'open-console' or after 'close-console'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span> \
+<span id="L25" class="LineNr"> 25 </span>        <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;tried to read event from real keyboard/mouse before 'open-console' or after 'close-console'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span> \
 <span id="L26" class="LineNr"> 26 </span>      <span class="Identifier">break</span><span class="Delimiter">;</span> \
 <span id="L27" class="LineNr"> 27 </span>    <span class="Delimiter">}</span>
 <span id="L28" class="LineNr"> 28 </span>
 <span id="L29" class="LineNr"> 29 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 <span id="L30" class="LineNr"> 30 </span>OPEN_CONSOLE<span class="Delimiter">,</span>
 <span id="L31" class="LineNr"> 31 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-<span id="L32" class="LineNr"> 32 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;open-console&quot;</span><span class="Delimiter">,</span> OPEN_CONSOLE<span class="Delimiter">);</span>
+<span id="L32" class="LineNr"> 32 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;open-console&quot;</span><span class="Delimiter">,</span> OPEN_CONSOLE<span class="Delimiter">);</span>
 <span id="L33" class="LineNr"> 33 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L34" class="LineNr"> 34 </span><span class="Normal">case</span> OPEN_CONSOLE: <span class="Delimiter">{</span>
 <span id="L35" class="LineNr"> 35 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -98,14 +102,14 @@ if ('onhashchange' in window) {
 <span id="L38" class="LineNr"> 38 </span><span class="Normal">case</span> OPEN_CONSOLE: <span class="Delimiter">{</span>
 <span id="L39" class="LineNr"> 39 </span>  tb_init<span class="Delimiter">();</span>
 <span id="L40" class="LineNr"> 40 </span>  std::setvbuf<span class="Delimiter">(</span><span class="Constant">stdout</span><span class="Delimiter">,</span> <span class="Constant">NULL</span><span class="Delimiter">,</span> <span class="Constant">_IONBF</span><span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">);</span>  <span class="Comment">// disable buffering in cout</span>
-<span id="L41" class="LineNr"> 41 </span>  Display_row = Display_column = <span class="Constant">0</span><span class="Delimiter">;</span>
+<span id="L41" class="LineNr"> 41 </span>  <span class="Special">Display_row</span> = <span class="Special">Display_column</span> = <span class="Constant">0</span><span class="Delimiter">;</span>
 <span id="L42" class="LineNr"> 42 </span>  <span class="Normal">int</span> width = tb_width<span class="Delimiter">();</span>
 <span id="L43" class="LineNr"> 43 </span>  <span class="Normal">int</span> height = tb_height<span class="Delimiter">();</span>
 <span id="L44" class="LineNr"> 44 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>width &gt; <span class="Constant">222</span> || height &gt; <span class="Constant">222</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L45" class="LineNr"> 45 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span>width &gt; <span class="Constant">222</span><span class="Delimiter">)</span>
-<span id="L46" class="LineNr"> 46 </span>      <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <span class="Constant">&quot;sorry, Mu doesn't support windows wider than 222 characters in console mode. Please resize your window.</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L46" class="LineNr"> 46 </span>      <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <span class="Constant">&quot;sorry, Mu doesn't support windows wider than 222 characters in console mode. Please resize your window.\n&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
 <span id="L47" class="LineNr"> 47 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span>height &gt; <span class="Constant">222</span><span class="Delimiter">)</span>
-<span id="L48" class="LineNr"> 48 </span>      <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <span class="Constant">&quot;sorry, Mu doesn't support windows taller than 222 characters in console mode. Please resize your window.</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L48" class="LineNr"> 48 </span>      <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <span class="Constant">&quot;sorry, Mu doesn't support windows taller than 222 characters in console mode. Please resize your window.\n&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
 <span id="L49" class="LineNr"> 49 </span>    exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
 <span id="L50" class="LineNr"> 50 </span>  <span class="Delimiter">}</span>
 <span id="L51" class="LineNr"> 51 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -114,7 +118,7 @@ if ('onhashchange' in window) {
 <span id="L54" class="LineNr"> 54 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 <span id="L55" class="LineNr"> 55 </span>CLOSE_CONSOLE<span class="Delimiter">,</span>
 <span id="L56" class="LineNr"> 56 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-<span id="L57" class="LineNr"> 57 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;close-console&quot;</span><span class="Delimiter">,</span> CLOSE_CONSOLE<span class="Delimiter">);</span>
+<span id="L57" class="LineNr"> 57 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;close-console&quot;</span><span class="Delimiter">,</span> CLOSE_CONSOLE<span class="Delimiter">);</span>
 <span id="L58" class="LineNr"> 58 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L59" class="LineNr"> 59 </span><span class="Normal">case</span> CLOSE_CONSOLE: <span class="Delimiter">{</span>
 <span id="L60" class="LineNr"> 60 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -128,7 +132,7 @@ if ('onhashchange' in window) {
 <span id="L68" class="LineNr"> 68 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 <span id="L69" class="LineNr"> 69 </span>CLEAR_DISPLAY<span class="Delimiter">,</span>
 <span id="L70" class="LineNr"> 70 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-<span id="L71" class="LineNr"> 71 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;clear-display&quot;</span><span class="Delimiter">,</span> CLEAR_DISPLAY<span class="Delimiter">);</span>
+<span id="L71" class="LineNr"> 71 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;clear-display&quot;</span><span class="Delimiter">,</span> CLEAR_DISPLAY<span class="Delimiter">);</span>
 <span id="L72" class="LineNr"> 72 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L73" class="LineNr"> 73 </span><span class="Normal">case</span> CLEAR_DISPLAY: <span class="Delimiter">{</span>
 <span id="L74" class="LineNr"> 74 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -137,33 +141,33 @@ if ('onhashchange' in window) {
 <span id="L77" class="LineNr"> 77 </span><span class="Normal">case</span> CLEAR_DISPLAY: <span class="Delimiter">{</span>
 <span id="L78" class="LineNr"> 78 </span>  <a href='080display.cc.html#L12'>CHECK_SCREEN</a><span class="Delimiter">;</span>
 <span id="L79" class="LineNr"> 79 </span>  tb_clear<span class="Delimiter">();</span>
-<span id="L80" class="LineNr"> 80 </span>  Display_row = Display_column = <span class="Constant">0</span><span class="Delimiter">;</span>
+<span id="L80" class="LineNr"> 80 </span>  <span class="Special">Display_row</span> = <span class="Special">Display_column</span> = <span class="Constant">0</span><span class="Delimiter">;</span>
 <span id="L81" class="LineNr"> 81 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L82" class="LineNr"> 82 </span><span class="Delimiter">}</span>
 <span id="L83" class="LineNr"> 83 </span>
 <span id="L84" class="LineNr"> 84 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 <span id="L85" class="LineNr"> 85 </span>PRINT_CHARACTER_TO_DISPLAY<span class="Delimiter">,</span>
 <span id="L86" class="LineNr"> 86 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-<span id="L87" class="LineNr"> 87 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;print-character-to-display&quot;</span><span class="Delimiter">,</span> PRINT_CHARACTER_TO_DISPLAY<span class="Delimiter">);</span>
+<span id="L87" class="LineNr"> 87 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;print-character-to-display&quot;</span><span class="Delimiter">,</span> PRINT_CHARACTER_TO_DISPLAY<span class="Delimiter">);</span>
 <span id="L88" class="LineNr"> 88 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L89" class="LineNr"> 89 </span><span class="Normal">case</span> PRINT_CHARACTER_TO_DISPLAY: <span class="Delimiter">{</span>
 <span id="L90" class="LineNr"> 90 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
-<span id="L91" class="LineNr"> 91 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'print-character-to-display' requires at least one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L91" class="LineNr"> 91 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'print-character-to-display' requires at least one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L92" class="LineNr"> 92 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L93" class="LineNr"> 93 </span>  <span class="Delimiter">}</span>
 <span id="L94" class="LineNr"> 94 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L95" class="LineNr"> 95 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;first ingredient of 'print-character-to-display' should be a character, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L95" class="LineNr"> 95 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;first ingredient of 'print-character-to-display' should be a character, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L96" class="LineNr"> 96 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L97" class="LineNr"> 97 </span>  <span class="Delimiter">}</span>
 <span id="L98" class="LineNr"> 98 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> &gt; <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L99" class="LineNr"> 99 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L100" class="LineNr">100 </span>      <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;second ingredient of 'print-character-to-display' should be a foreground color number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L100" class="LineNr">100 </span>      <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;second ingredient of 'print-character-to-display' should be a foreground color number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L101" class="LineNr">101 </span>      <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L102" class="LineNr">102 </span>    <span class="Delimiter">}</span>
 <span id="L103" class="LineNr">103 </span>  <span class="Delimiter">}</span>
 <span id="L104" class="LineNr">104 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> &gt; <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L105" class="LineNr">105 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L106" class="LineNr">106 </span>      <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;third ingredient of 'print-character-to-display' should be a background color number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L106" class="LineNr">106 </span>      <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;third ingredient of 'print-character-to-display' should be a background color number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L107" class="LineNr">107 </span>      <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L108" class="LineNr">108 </span>    <span class="Delimiter">}</span>
 <span id="L109" class="LineNr">109 </span>  <span class="Delimiter">}</span>
@@ -188,19 +192,19 @@ if ('onhashchange' in window) {
 <span id="L128" class="LineNr">128 </span>  tb_print<span class="Delimiter">(</span>c<span class="Delimiter">,</span> color<span class="Delimiter">,</span> bg_color<span class="Delimiter">);</span>
 <span id="L129" class="LineNr">129 </span>  <span class="Comment">// track row and column, mimicking what happens on screen</span>
 <span id="L130" class="LineNr">130 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="cSpecial">'\n'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L131" class="LineNr">131 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span>Display_row &lt; height-<span class="Constant">1</span><span class="Delimiter">)</span> ++Display_row<span class="Delimiter">;</span>  <span class="Comment">// otherwise we scroll and Display_row remains unchanged</span>
+<span id="L131" class="LineNr">131 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Display_row</span> &lt; height-<span class="Constant">1</span><span class="Delimiter">)</span> ++<span class="Special">Display_row</span><span class="Delimiter">;</span>  <span class="Comment">// otherwise we scroll and Display_row remains unchanged</span>
 <span id="L132" class="LineNr">132 </span>  <span class="Delimiter">}</span>
 <span id="L133" class="LineNr">133 </span>  <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="cSpecial">'\r'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L134" class="LineNr">134 </span>    Display_column = <span class="Constant">0</span><span class="Delimiter">;</span>
+<span id="L134" class="LineNr">134 </span>    <span class="Special">Display_column</span> = <span class="Constant">0</span><span class="Delimiter">;</span>
 <span id="L135" class="LineNr">135 </span>  <span class="Delimiter">}</span>
 <span id="L136" class="LineNr">136 </span>  <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="cSpecial">'\b'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L137" class="LineNr">137 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span>Display_column &gt; <span class="Constant">0</span><span class="Delimiter">)</span> --Display_column<span class="Delimiter">;</span>
+<span id="L137" class="LineNr">137 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Display_column</span> &gt; <span class="Constant">0</span><span class="Delimiter">)</span> --<span class="Special">Display_column</span><span class="Delimiter">;</span>
 <span id="L138" class="LineNr">138 </span>  <span class="Delimiter">}</span>
 <span id="L139" class="LineNr">139 </span>  <span class="Normal">else</span> <span class="Delimiter">{</span>
-<span id="L140" class="LineNr">140 </span>    ++Display_column<span class="Delimiter">;</span>
-<span id="L141" class="LineNr">141 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span>Display_column &gt;= width<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L142" class="LineNr">142 </span>      Display_column = <span class="Constant">0</span><span class="Delimiter">;</span>
-<span id="L143" class="LineNr">143 </span>      <span class="Normal">if</span> <span class="Delimiter">(</span>Display_row &lt; height-<span class="Constant">1</span><span class="Delimiter">)</span> ++Display_row<span class="Delimiter">;</span>
+<span id="L140" class="LineNr">140 </span>    ++<span class="Special">Display_column</span><span class="Delimiter">;</span>
+<span id="L141" class="LineNr">141 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Display_column</span> &gt;= width<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L142" class="LineNr">142 </span>      <span class="Special">Display_column</span> = <span class="Constant">0</span><span class="Delimiter">;</span>
+<span id="L143" class="LineNr">143 </span>      <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Display_row</span> &lt; height-<span class="Constant">1</span><span class="Delimiter">)</span> ++<span class="Special">Display_row</span><span class="Delimiter">;</span>
 <span id="L144" class="LineNr">144 </span>    <span class="Delimiter">}</span>
 <span id="L145" class="LineNr">145 </span>  <span class="Delimiter">}</span>
 <span id="L146" class="LineNr">146 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -209,7 +213,7 @@ if ('onhashchange' in window) {
 <span id="L149" class="LineNr">149 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 <span id="L150" class="LineNr">150 </span>CURSOR_POSITION_ON_DISPLAY<span class="Delimiter">,</span>
 <span id="L151" class="LineNr">151 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-<span id="L152" class="LineNr">152 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;cursor-position-on-display&quot;</span><span class="Delimiter">,</span> CURSOR_POSITION_ON_DISPLAY<span class="Delimiter">);</span>
+<span id="L152" class="LineNr">152 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;cursor-position-on-display&quot;</span><span class="Delimiter">,</span> CURSOR_POSITION_ON_DISPLAY<span class="Delimiter">);</span>
 <span id="L153" class="LineNr">153 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L154" class="LineNr">154 </span><span class="Normal">case</span> CURSOR_POSITION_ON_DISPLAY: <span class="Delimiter">{</span>
 <span id="L155" class="LineNr">155 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -218,27 +222,27 @@ if ('onhashchange' in window) {
 <span id="L158" class="LineNr">158 </span><span class="Normal">case</span> CURSOR_POSITION_ON_DISPLAY: <span class="Delimiter">{</span>
 <span id="L159" class="LineNr">159 </span>  <a href='080display.cc.html#L12'>CHECK_SCREEN</a><span class="Delimiter">;</span>
 <span id="L160" class="LineNr">160 </span>  products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">);</span>
-<span id="L161" class="LineNr">161 </span>  products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span>Display_row<span class="Delimiter">);</span>
-<span id="L162" class="LineNr">162 </span>  products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span>Display_column<span class="Delimiter">);</span>
+<span id="L161" class="LineNr">161 </span>  products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Special">Display_row</span><span class="Delimiter">);</span>
+<span id="L162" class="LineNr">162 </span>  products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Special">Display_column</span><span class="Delimiter">);</span>
 <span id="L163" class="LineNr">163 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L164" class="LineNr">164 </span><span class="Delimiter">}</span>
 <span id="L165" class="LineNr">165 </span>
 <span id="L166" class="LineNr">166 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 <span id="L167" class="LineNr">167 </span>MOVE_CURSOR_ON_DISPLAY<span class="Delimiter">,</span>
 <span id="L168" class="LineNr">168 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-<span id="L169" class="LineNr">169 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;move-cursor-on-display&quot;</span><span class="Delimiter">,</span> MOVE_CURSOR_ON_DISPLAY<span class="Delimiter">);</span>
+<span id="L169" class="LineNr">169 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;move-cursor-on-display&quot;</span><span class="Delimiter">,</span> MOVE_CURSOR_ON_DISPLAY<span class="Delimiter">);</span>
 <span id="L170" class="LineNr">170 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L171" class="LineNr">171 </span><span class="Normal">case</span> MOVE_CURSOR_ON_DISPLAY: <span class="Delimiter">{</span>
 <span id="L172" class="LineNr">172 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L173" class="LineNr">173 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'move-cursor-on-display' requires two ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L173" class="LineNr">173 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'move-cursor-on-display' requires two ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L174" class="LineNr">174 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L175" class="LineNr">175 </span>  <span class="Delimiter">}</span>
 <span id="L176" class="LineNr">176 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L177" class="LineNr">177 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;first ingredient of 'move-cursor-on-display' should be a row number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L177" class="LineNr">177 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;first ingredient of 'move-cursor-on-display' should be a row number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L178" class="LineNr">178 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L179" class="LineNr">179 </span>  <span class="Delimiter">}</span>
 <span id="L180" class="LineNr">180 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L181" class="LineNr">181 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;second ingredient of 'move-cursor-on-display' should be a column number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L181" class="LineNr">181 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;second ingredient of 'move-cursor-on-display' should be a column number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L182" class="LineNr">182 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L183" class="LineNr">183 </span>  <span class="Delimiter">}</span>
 <span id="L184" class="LineNr">184 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -246,16 +250,16 @@ if ('onhashchange' in window) {
 <span id="L186" class="LineNr">186 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
 <span id="L187" class="LineNr">187 </span><span class="Normal">case</span> MOVE_CURSOR_ON_DISPLAY: <span class="Delimiter">{</span>
 <span id="L188" class="LineNr">188 </span>  <a href='080display.cc.html#L12'>CHECK_SCREEN</a><span class="Delimiter">;</span>
-<span id="L189" class="LineNr">189 </span>  Display_row = ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
-<span id="L190" class="LineNr">190 </span>  Display_column = ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
-<span id="L191" class="LineNr">191 </span>  tb_set_cursor<span class="Delimiter">(</span>Display_column<span class="Delimiter">,</span> Display_row<span class="Delimiter">);</span>
+<span id="L189" class="LineNr">189 </span>  <span class="Special">Display_row</span> = ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
+<span id="L190" class="LineNr">190 </span>  <span class="Special">Display_column</span> = ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
+<span id="L191" class="LineNr">191 </span>  tb_set_cursor<span class="Delimiter">(</span><span class="Special">Display_column</span><span class="Delimiter">,</span> <span class="Special">Display_row</span><span class="Delimiter">);</span>
 <span id="L192" class="LineNr">192 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L193" class="LineNr">193 </span><span class="Delimiter">}</span>
 <span id="L194" class="LineNr">194 </span>
 <span id="L195" class="LineNr">195 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 <span id="L196" class="LineNr">196 </span>MOVE_CURSOR_DOWN_ON_DISPLAY<span class="Delimiter">,</span>
 <span id="L197" class="LineNr">197 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-<span id="L198" class="LineNr">198 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;move-cursor-down-on-display&quot;</span><span class="Delimiter">,</span> MOVE_CURSOR_DOWN_ON_DISPLAY<span class="Delimiter">);</span>
+<span id="L198" class="LineNr">198 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;move-cursor-down-on-display&quot;</span><span class="Delimiter">,</span> MOVE_CURSOR_DOWN_ON_DISPLAY<span class="Delimiter">);</span>
 <span id="L199" class="LineNr">199 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L200" class="LineNr">200 </span><span class="Normal">case</span> MOVE_CURSOR_DOWN_ON_DISPLAY: <span class="Delimiter">{</span>
 <span id="L201" class="LineNr">201 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -265,9 +269,9 @@ if ('onhashchange' in window) {
 <span id="L205" class="LineNr">205 </span>  <a href='080display.cc.html#L12'>CHECK_SCREEN</a><span class="Delimiter">;</span>
 <span id="L206" class="LineNr">206 </span>  <span class="Normal">int</span> h=tb_height<span class="Delimiter">();</span>
 <span id="L207" class="LineNr">207 </span>  <span class="Normal">int</span> height = <span class="Delimiter">(</span>h &gt;= <span class="Constant">0</span><span class="Delimiter">)</span> ? h : <span class="Constant">0</span><span class="Delimiter">;</span>
-<span id="L208" class="LineNr">208 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>Display_row &lt; height-<span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L209" class="LineNr">209 </span>    ++Display_row<span class="Delimiter">;</span>
-<span id="L210" class="LineNr">210 </span>    tb_set_cursor<span class="Delimiter">(</span>Display_column<span class="Delimiter">,</span> Display_row<span class="Delimiter">);</span>
+<span id="L208" class="LineNr">208 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Display_row</span> &lt; height-<span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L209" class="LineNr">209 </span>    ++<span class="Special">Display_row</span><span class="Delimiter">;</span>
+<span id="L210" class="LineNr">210 </span>    tb_set_cursor<span class="Delimiter">(</span><span class="Special">Display_column</span><span class="Delimiter">,</span> <span class="Special">Display_row</span><span class="Delimiter">);</span>
 <span id="L211" class="LineNr">211 </span>  <span class="Delimiter">}</span>
 <span id="L212" class="LineNr">212 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L213" class="LineNr">213 </span><span class="Delimiter">}</span>
@@ -275,7 +279,7 @@ if ('onhashchange' in window) {
 <span id="L215" class="LineNr">215 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 <span id="L216" class="LineNr">216 </span>MOVE_CURSOR_UP_ON_DISPLAY<span class="Delimiter">,</span>
 <span id="L217" class="LineNr">217 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-<span id="L218" class="LineNr">218 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;move-cursor-up-on-display&quot;</span><span class="Delimiter">,</span> MOVE_CURSOR_UP_ON_DISPLAY<span class="Delimiter">);</span>
+<span id="L218" class="LineNr">218 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;move-cursor-up-on-display&quot;</span><span class="Delimiter">,</span> MOVE_CURSOR_UP_ON_DISPLAY<span class="Delimiter">);</span>
 <span id="L219" class="LineNr">219 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L220" class="LineNr">220 </span><span class="Normal">case</span> MOVE_CURSOR_UP_ON_DISPLAY: <span class="Delimiter">{</span>
 <span id="L221" class="LineNr">221 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -283,9 +287,9 @@ if ('onhashchange' in window) {
 <span id="L223" class="LineNr">223 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
 <span id="L224" class="LineNr">224 </span><span class="Normal">case</span> MOVE_CURSOR_UP_ON_DISPLAY: <span class="Delimiter">{</span>
 <span id="L225" class="LineNr">225 </span>  <a href='080display.cc.html#L12'>CHECK_SCREEN</a><span class="Delimiter">;</span>
-<span id="L226" class="LineNr">226 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>Display_row &gt; <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L227" class="LineNr">227 </span>    --Display_row<span class="Delimiter">;</span>
-<span id="L228" class="LineNr">228 </span>    tb_set_cursor<span class="Delimiter">(</span>Display_column<span class="Delimiter">,</span> Display_row<span class="Delimiter">);</span>
+<span id="L226" class="LineNr">226 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Display_row</span> &gt; <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L227" class="LineNr">227 </span>    --<span class="Special">Display_row</span><span class="Delimiter">;</span>
+<span id="L228" class="LineNr">228 </span>    tb_set_cursor<span class="Delimiter">(</span><span class="Special">Display_column</span><span class="Delimiter">,</span> <span class="Special">Display_row</span><span class="Delimiter">);</span>
 <span id="L229" class="LineNr">229 </span>  <span class="Delimiter">}</span>
 <span id="L230" class="LineNr">230 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L231" class="LineNr">231 </span><span class="Delimiter">}</span>
@@ -293,7 +297,7 @@ if ('onhashchange' in window) {
 <span id="L233" class="LineNr">233 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 <span id="L234" class="LineNr">234 </span>MOVE_CURSOR_RIGHT_ON_DISPLAY<span class="Delimiter">,</span>
 <span id="L235" class="LineNr">235 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-<span id="L236" class="LineNr">236 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;move-cursor-right-on-display&quot;</span><span class="Delimiter">,</span> MOVE_CURSOR_RIGHT_ON_DISPLAY<span class="Delimiter">);</span>
+<span id="L236" class="LineNr">236 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;move-cursor-right-on-display&quot;</span><span class="Delimiter">,</span> MOVE_CURSOR_RIGHT_ON_DISPLAY<span class="Delimiter">);</span>
 <span id="L237" class="LineNr">237 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L238" class="LineNr">238 </span><span class="Normal">case</span> MOVE_CURSOR_RIGHT_ON_DISPLAY: <span class="Delimiter">{</span>
 <span id="L239" class="LineNr">239 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -303,9 +307,9 @@ if ('onhashchange' in window) {
 <span id="L243" class="LineNr">243 </span>  <a href='080display.cc.html#L12'>CHECK_SCREEN</a><span class="Delimiter">;</span>
 <span id="L244" class="LineNr">244 </span>  <span class="Normal">int</span> w=tb_width<span class="Delimiter">();</span>
 <span id="L245" class="LineNr">245 </span>  <span class="Normal">int</span> width = <span class="Delimiter">(</span>w &gt;= <span class="Constant">0</span><span class="Delimiter">)</span> ? w : <span class="Constant">0</span><span class="Delimiter">;</span>
-<span id="L246" class="LineNr">246 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>Display_column &lt; width-<span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L247" class="LineNr">247 </span>    ++Display_column<span class="Delimiter">;</span>
-<span id="L248" class="LineNr">248 </span>    tb_set_cursor<span class="Delimiter">(</span>Display_column<span class="Delimiter">,</span> Display_row<span class="Delimiter">);</span>
+<span id="L246" class="LineNr">246 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Display_column</span> &lt; width-<span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L247" class="LineNr">247 </span>    ++<span class="Special">Display_column</span><span class="Delimiter">;</span>
+<span id="L248" class="LineNr">248 </span>    tb_set_cursor<span class="Delimiter">(</span><span class="Special">Display_column</span><span class="Delimiter">,</span> <span class="Special">Display_row</span><span class="Delimiter">);</span>
 <span id="L249" class="LineNr">249 </span>  <span class="Delimiter">}</span>
 <span id="L250" class="LineNr">250 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L251" class="LineNr">251 </span><span class="Delimiter">}</span>
@@ -313,7 +317,7 @@ if ('onhashchange' in window) {
 <span id="L253" class="LineNr">253 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 <span id="L254" class="LineNr">254 </span>MOVE_CURSOR_LEFT_ON_DISPLAY<span class="Delimiter">,</span>
 <span id="L255" class="LineNr">255 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-<span id="L256" class="LineNr">256 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;move-cursor-left-on-display&quot;</span><span class="Delimiter">,</span> MOVE_CURSOR_LEFT_ON_DISPLAY<span class="Delimiter">);</span>
+<span id="L256" class="LineNr">256 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;move-cursor-left-on-display&quot;</span><span class="Delimiter">,</span> MOVE_CURSOR_LEFT_ON_DISPLAY<span class="Delimiter">);</span>
 <span id="L257" class="LineNr">257 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L258" class="LineNr">258 </span><span class="Normal">case</span> MOVE_CURSOR_LEFT_ON_DISPLAY: <span class="Delimiter">{</span>
 <span id="L259" class="LineNr">259 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -321,9 +325,9 @@ if ('onhashchange' in window) {
 <span id="L261" class="LineNr">261 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
 <span id="L262" class="LineNr">262 </span><span class="Normal">case</span> MOVE_CURSOR_LEFT_ON_DISPLAY: <span class="Delimiter">{</span>
 <span id="L263" class="LineNr">263 </span>  <a href='080display.cc.html#L12'>CHECK_SCREEN</a><span class="Delimiter">;</span>
-<span id="L264" class="LineNr">264 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>Display_column &gt; <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L265" class="LineNr">265 </span>    --Display_column<span class="Delimiter">;</span>
-<span id="L266" class="LineNr">266 </span>    tb_set_cursor<span class="Delimiter">(</span>Display_column<span class="Delimiter">,</span> Display_row<span class="Delimiter">);</span>
+<span id="L264" class="LineNr">264 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Display_column</span> &gt; <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L265" class="LineNr">265 </span>    --<span class="Special">Display_column</span><span class="Delimiter">;</span>
+<span id="L266" class="LineNr">266 </span>    tb_set_cursor<span class="Delimiter">(</span><span class="Special">Display_column</span><span class="Delimiter">,</span> <span class="Special">Display_row</span><span class="Delimiter">);</span>
 <span id="L267" class="LineNr">267 </span>  <span class="Delimiter">}</span>
 <span id="L268" class="LineNr">268 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L269" class="LineNr">269 </span><span class="Delimiter">}</span>
@@ -335,16 +339,16 @@ if ('onhashchange' in window) {
 <span id="L275" class="LineNr">275 </span><span class="Delimiter">}</span>
 <span id="L276" class="LineNr">276 </span><span class="Delimiter">:(code)</span>
 <span id="L277" class="LineNr">277 </span><span class="Normal">void</span> <a href='080display.cc.html#L277'>move_cursor_to_start_of_next_line_on_display</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
-<span id="L278" class="LineNr">278 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>Display_row &lt; tb_height<span class="Delimiter">()</span>-<span class="Constant">1</span><span class="Delimiter">)</span> ++Display_row<span class="Delimiter">;</span>
-<span id="L279" class="LineNr">279 </span>  <span class="Normal">else</span> Display_row = <span class="Constant">0</span><span class="Delimiter">;</span>
-<span id="L280" class="LineNr">280 </span>  Display_column = <span class="Constant">0</span><span class="Delimiter">;</span>
-<span id="L281" class="LineNr">281 </span>  tb_set_cursor<span class="Delimiter">(</span>Display_column<span class="Delimiter">,</span> Display_row<span class="Delimiter">);</span>
+<span id="L278" class="LineNr">278 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Display_row</span> &lt; tb_height<span class="Delimiter">()</span>-<span class="Constant">1</span><span class="Delimiter">)</span> ++<span class="Special">Display_row</span><span class="Delimiter">;</span>
+<span id="L279" class="LineNr">279 </span>  <span class="Normal">else</span> <span class="Special">Display_row</span> = <span class="Constant">0</span><span class="Delimiter">;</span>
+<span id="L280" class="LineNr">280 </span>  <span class="Special">Display_column</span> = <span class="Constant">0</span><span class="Delimiter">;</span>
+<span id="L281" class="LineNr">281 </span>  tb_set_cursor<span class="Delimiter">(</span><span class="Special">Display_column</span><span class="Delimiter">,</span> <span class="Special">Display_row</span><span class="Delimiter">);</span>
 <span id="L282" class="LineNr">282 </span><span class="Delimiter">}</span>
 <span id="L283" class="LineNr">283 </span>
 <span id="L284" class="LineNr">284 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 <span id="L285" class="LineNr">285 </span>DISPLAY_WIDTH<span class="Delimiter">,</span>
 <span id="L286" class="LineNr">286 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-<span id="L287" class="LineNr">287 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;display-width&quot;</span><span class="Delimiter">,</span> DISPLAY_WIDTH<span class="Delimiter">);</span>
+<span id="L287" class="LineNr">287 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;display-width&quot;</span><span class="Delimiter">,</span> DISPLAY_WIDTH<span class="Delimiter">);</span>
 <span id="L288" class="LineNr">288 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L289" class="LineNr">289 </span><span class="Normal">case</span> DISPLAY_WIDTH: <span class="Delimiter">{</span>
 <span id="L290" class="LineNr">290 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -360,7 +364,7 @@ if ('onhashchange' in window) {
 <span id="L300" class="LineNr">300 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 <span id="L301" class="LineNr">301 </span>DISPLAY_HEIGHT<span class="Delimiter">,</span>
 <span id="L302" class="LineNr">302 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-<span id="L303" class="LineNr">303 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;display-height&quot;</span><span class="Delimiter">,</span> DISPLAY_HEIGHT<span class="Delimiter">);</span>
+<span id="L303" class="LineNr">303 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;display-height&quot;</span><span class="Delimiter">,</span> DISPLAY_HEIGHT<span class="Delimiter">);</span>
 <span id="L304" class="LineNr">304 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L305" class="LineNr">305 </span><span class="Normal">case</span> DISPLAY_HEIGHT: <span class="Delimiter">{</span>
 <span id="L306" class="LineNr">306 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -378,7 +382,7 @@ if ('onhashchange' in window) {
 <span id="L318" class="LineNr">318 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 <span id="L319" class="LineNr">319 </span>WAIT_FOR_SOME_INTERACTION<span class="Delimiter">,</span>
 <span id="L320" class="LineNr">320 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-<span id="L321" class="LineNr">321 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;wait-for-some-interaction&quot;</span><span class="Delimiter">,</span> WAIT_FOR_SOME_INTERACTION<span class="Delimiter">);</span>
+<span id="L321" class="LineNr">321 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;wait-for-some-interaction&quot;</span><span class="Delimiter">,</span> WAIT_FOR_SOME_INTERACTION<span class="Delimiter">);</span>
 <span id="L322" class="LineNr">322 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L323" class="LineNr">323 </span><span class="Normal">case</span> WAIT_FOR_SOME_INTERACTION: <span class="Delimiter">{</span>
 <span id="L324" class="LineNr">324 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -394,7 +398,7 @@ if ('onhashchange' in window) {
 <span id="L334" class="LineNr">334 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 <span id="L335" class="LineNr">335 </span>CHECK_FOR_INTERACTION<span class="Delimiter">,</span>
 <span id="L336" class="LineNr">336 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-<span id="L337" class="LineNr">337 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;check-for-interaction&quot;</span><span class="Delimiter">,</span> CHECK_FOR_INTERACTION<span class="Delimiter">);</span>
+<span id="L337" class="LineNr">337 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;check-for-interaction&quot;</span><span class="Delimiter">,</span> CHECK_FOR_INTERACTION<span class="Delimiter">);</span>
 <span id="L338" class="LineNr">338 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L339" class="LineNr">339 </span><span class="Normal">case</span> CHECK_FOR_INTERACTION: <span class="Delimiter">{</span>
 <span id="L340" class="LineNr">340 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -462,7 +466,7 @@ if ('onhashchange' in window) {
 <span id="L402" class="LineNr">402 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 <span id="L403" class="LineNr">403 </span>INTERACTIONS_LEFT<span class="Delimiter">,</span>
 <span id="L404" class="LineNr">404 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-<span id="L405" class="LineNr">405 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;interactions-left?&quot;</span><span class="Delimiter">,</span> INTERACTIONS_LEFT<span class="Delimiter">);</span>
+<span id="L405" class="LineNr">405 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;interactions-left?&quot;</span><span class="Delimiter">,</span> INTERACTIONS_LEFT<span class="Delimiter">);</span>
 <span id="L406" class="LineNr">406 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L407" class="LineNr">407 </span><span class="Normal">case</span> INTERACTIONS_LEFT: <span class="Delimiter">{</span>
 <span id="L408" class="LineNr">408 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -480,7 +484,7 @@ if ('onhashchange' in window) {
 <span id="L420" class="LineNr">420 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 <span id="L421" class="LineNr">421 </span>CLEAR_LINE_ON_DISPLAY<span class="Delimiter">,</span>
 <span id="L422" class="LineNr">422 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-<span id="L423" class="LineNr">423 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;clear-line-on-display&quot;</span><span class="Delimiter">,</span> CLEAR_LINE_ON_DISPLAY<span class="Delimiter">);</span>
+<span id="L423" class="LineNr">423 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;clear-line-on-display&quot;</span><span class="Delimiter">,</span> CLEAR_LINE_ON_DISPLAY<span class="Delimiter">);</span>
 <span id="L424" class="LineNr">424 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L425" class="LineNr">425 </span><span class="Normal">case</span> CLEAR_LINE_ON_DISPLAY: <span class="Delimiter">{</span>
 <span id="L426" class="LineNr">426 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -489,16 +493,16 @@ if ('onhashchange' in window) {
 <span id="L429" class="LineNr">429 </span><span class="Normal">case</span> CLEAR_LINE_ON_DISPLAY: <span class="Delimiter">{</span>
 <span id="L430" class="LineNr">430 </span>  <a href='080display.cc.html#L12'>CHECK_SCREEN</a><span class="Delimiter">;</span>
 <span id="L431" class="LineNr">431 </span>  <span class="Normal">int</span> width = tb_width<span class="Delimiter">();</span>
-<span id="L432" class="LineNr">432 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> x = Display_column<span class="Delimiter">;</span>  x &lt; width<span class="Delimiter">;</span>  ++x<span class="Delimiter">)</span>
+<span id="L432" class="LineNr">432 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> x = <span class="Special">Display_column</span><span class="Delimiter">;</span>  x &lt; width<span class="Delimiter">;</span>  ++x<span class="Delimiter">)</span>
 <span id="L433" class="LineNr">433 </span>    tb_print<span class="Delimiter">(</span><span class="Constant">' '</span><span class="Delimiter">,</span> TB_WHITE<span class="Delimiter">,</span> TB_BLACK<span class="Delimiter">);</span>
-<span id="L434" class="LineNr">434 </span>  tb_set_cursor<span class="Delimiter">(</span>Display_column<span class="Delimiter">,</span> Display_row<span class="Delimiter">);</span>
+<span id="L434" class="LineNr">434 </span>  tb_set_cursor<span class="Delimiter">(</span><span class="Special">Display_column</span><span class="Delimiter">,</span> <span class="Special">Display_row</span><span class="Delimiter">);</span>
 <span id="L435" class="LineNr">435 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L436" class="LineNr">436 </span><span class="Delimiter">}</span>
 <span id="L437" class="LineNr">437 </span>
 <span id="L438" class="LineNr">438 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 <span id="L439" class="LineNr">439 </span>CLEAR_DISPLAY_FROM<span class="Delimiter">,</span>
 <span id="L440" class="LineNr">440 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-<span id="L441" class="LineNr">441 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;clear-display-from&quot;</span><span class="Delimiter">,</span> CLEAR_DISPLAY_FROM<span class="Delimiter">);</span>
+<span id="L441" class="LineNr">441 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;clear-display-from&quot;</span><span class="Delimiter">,</span> CLEAR_DISPLAY_FROM<span class="Delimiter">);</span>
 <span id="L442" class="LineNr">442 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L443" class="LineNr">443 </span><span class="Normal">case</span> CLEAR_DISPLAY_FROM: <span class="Delimiter">{</span>
 <span id="L444" class="LineNr">444 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -517,7 +521,7 @@ if ('onhashchange' in window) {
 <span id="L457" class="LineNr">457 </span>    <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">nada</span><span class="Comment">*/</span><span class="Delimiter">;</span>  column &lt;= right<span class="Delimiter">;</span>  ++column<span class="Delimiter">)</span>
 <span id="L458" class="LineNr">458 </span>      tb_print<span class="Delimiter">(</span><span class="Constant">' '</span><span class="Delimiter">,</span> TB_WHITE<span class="Delimiter">,</span> TB_BLACK<span class="Delimiter">);</span>
 <span id="L459" class="LineNr">459 </span>  <span class="Delimiter">}</span>
-<span id="L460" class="LineNr">460 </span>  tb_set_cursor<span class="Delimiter">(</span>Display_column<span class="Delimiter">,</span> Display_row<span class="Delimiter">);</span>
+<span id="L460" class="LineNr">460 </span>  tb_set_cursor<span class="Delimiter">(</span><span class="Special">Display_column</span><span class="Delimiter">,</span> <span class="Special">Display_row</span><span class="Delimiter">);</span>
 <span id="L461" class="LineNr">461 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L462" class="LineNr">462 </span><span class="Delimiter">}</span>
 </pre>